An FSPY file is a project created by fSpy, an open source program used to set the camera and focal lengths of 3D scenes in Blender. It contains various parameters, such as the camera position, camera orientation, and vanishing point axes, of an imported image that are used to recreate the area as a 3D scene in Blender. FSPY files also store metadata, such as the project version, the size of the imported image, and JSON information describing the project state.

FSPY file open in Stuffmatic fSpy 1 fSpy is a cross-platform standalone app that replaced the BLAM addon for Blender, which is an open source 3D creation suite used to produce visual effects, video games, interactive apps, 3D printed models, and animated films. The BLAM addon was a camera and video projector calibration tool that enabled a user to set the parameters for a camera in Blender based on an imported image. The camera parameters were then used to recreate the space in the image in Blender as a realistic 3D scene. You can import an image in fSpy and save an FSPY file that contains the parameters of the image. You can then import the FSPY file in Blender if you have the fSpy importer installed. To import an image in fSpry, select File → Open image. To save an FSP file in fSpy, select File → Save or Save as.